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International Journal of Environmental Health Research Volume 23, 2013 - Issue 2
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Fungal food choices of Dermatophagoides farinae affect indoor fungi selection and dispersal

Alexandre Naegele Department of Parasitology–Mycology, University Hospital J. Minjoz, Besançon, France; Department of Chrono-environnement (UMR/CNRS 6249), University of Franche-Comté, Besançon, France
,
Gabriel Reboux Department of Parasitology–Mycology, University Hospital J. Minjoz, Besançon, France; Department of Chrono-environnement (UMR/CNRS 6249), University of Franche-Comté, Besançon, FranceCorrespondence[email protected]
,
Emeline Scherer Department of Parasitology–Mycology, University Hospital J. Minjoz, Besançon, France; Department of Chrono-environnement (UMR/CNRS 6249), University of Franche-Comté, Besançon, France; Clinical Investigation Center (Inserm CIT 808), University Hospital J. Minjoz, Besançon, France
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Sandrine Roussel Department of Parasitology–Mycology, University Hospital J. Minjoz, Besançon, France; Department of Chrono-environnement (UMR/CNRS 6249), University of Franche-Comté, Besançon, France
&
Laurence Millon Department of Parasitology–Mycology, University Hospital J. Minjoz, Besançon, France; Department of Chrono-environnement (UMR/CNRS 6249), University of Franche-Comté, Besançon, France
Pages 91-95 | Received 08 Feb 2012, Accepted 30 Apr 2012, Published online: 10 Jul 2012
 
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Abstract

House dust mite (HDM) feces and molds are the main allergens involved in allergic asthma. Differences exist between the housing fungal biome of allergic patients and standard or unhealthy housing. House dust mite (HDM) feed off spores and transport them on their bodies, but do they have fungal food preferences? We observed Dermatophagoïdes farinae in vitro with 16 mold menus and repeated the experiment 10 times. This observation led us to define Alternaria alternata, Cladosporium sphaerospermum, and Wallemia sebi as “tasty” molds and Penicillium chrysogenum, Aspergillus versicolor, and Stachybotrys chartarum as “repulsive” molds. The food preferences of D. farinae may play a role in the following two phenomena: a decrease in spore numbers due to HDM consumption and a scattering of spores that stick to the bodies of HDMs. The extent of these two phenomena should be estimated in future studies for other common domestic HDM species.

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